Geoprocessing tools that require Network Analyst functionality fail when using a Python script with a Concurrent Use license

Description

In ArcGIS Business Analyst Pro, some geoprocessing tools require functionality enabled by a Network Analyst license. When using a script to run these tools, the tool fails if the user is accessing ArcGIS Pro through a Concurrent Use license.

Cause

When a Concurrent Use license is used, extension licenses are not automatically checked out. In particular, these tools require the Network Analyst extension:

• Generate Desire Lines
• Generate Threshold Drive Times
• Generate Approximate Drive Times
• Generate Drive Time Trade Area
• Generate Grids and Hexagons
• Add Point Layer Based Suitability Criteria
• Assign Customers By Distance

Solution or Workaround

Before running the script, add a line in the script that will check out the Network Analyst license: 

arcpy.CheckOutExtension("Network")

Add a line at the end of the script that checks both the Network Analyst and Concurrent Use licenses back in upon conclusion.